Basically there is no perfectly tuned carburator out-of-the-box. Yes, there is a slight chance it may work well upon install but not likely..
Today many new carburators are tuned on the lean side for emissions..
However one carburator has been mentioned more than others and that is a Holley.
IMHO...
A Holley carburator is EZ to tune if U understand its basics, and its multiple internal parts are readily available..

Just my $0.02.. wink